2004 MERCEDES-BENZ CLK-CLASS heating

ContentsSafety and Security........................... 57
Occupant safety................................... 58
Airbags ........................................... 59
Seat belts ....................................... 64
Roll bars ......................................... 68
Children in the vehicle .................... 69
Blocking of rear side
window operation ........................... 74
Panic alarm .......................................... 75
Activating ....................................... 75
Deactivating ................................... 75
Driving safety systems ......................... 76
ABS ................................................ 77
BAS ................................................ 78
ESP ................................................. 79
Anti-theft systems................................ 82
Immobilizer..................................... 82
Anti-theft alarm system .................. 83
Tow-away alarm ............................. 84
Controls in detail............................... 87
Locking and unlocking ......................... 88
SmartKeys...................................... 88
SmartKey with KEYLESS-GO* ........ 91
Opening the doors
from the inside ............................... 97
Opening the trunk .......................... 98
Closing the trunk.......................... 100
Trunk lid
opening/closing system* ............ 100
Trunk lid emergency release ........ 105
Separately locking the trunk ........ 106
Separately unlocking the trunk .... 107
Automatic central locking ............ 107
Locking and unlocking
from the inside ............................. 108
Seats ................................................. 109
Easy-entry/exit feature ................ 109
Removing and installing
front seat head restraints............. 110
Rear seats head restraints ........... 111
Multicontour seat* ....................... 112
Seat ventilation* .......................... 113
Seat heating* ............................... 114Memory function ............................... 116
Storing positions into memory ..... 117
Recalling positions from memory . 117
Storing exterior rear view
mirror parking position ................ 118
Lighting ............................................. 119
Exterior lamp switch .................... 119
Combination switch ..................... 123
Hazard warning flasher ................ 123
Interior lighting ............................ 124
Door entry lamps ......................... 125
Instrument cluster ............................. 126
Instrument cluster illumination .... 126
Coolant temperature indicator ..... 127
Trip odometer .............................. 127
Tachometer .................................. 127
Outside temperature indicator ..... 128
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114 Controls in detailSeatsSeat heating*
Vehicles without seat ventilation*
Both switches for the front seats are locat-
ed in the center console.
1Normal heating
2Rapid heating
Make sure the ignition is switched on.
All the lamps in the instrument cluster
come on.Switching on seat heating

Press upper switch position1.
A red indicator lamp on the switch
comes on.
Switching off seat heating

Press upper switch position1 again.
Switching on rapid seat heating

Press lower switch position2.
Both red indicator lamps on the switch
come on.Switching off rapid seat heating

Press lower switch position2.
iThe seat heating will be automatically
switched off after approximately
20 minutes. iThe system switches over to normal
heating mode after approximately ten
minutes. Only one indicator lamp re-
mains lit.
!If one or both of the lamps on the seat
heater switch are flashing, there is in-
sufficient voltage available since too
many electrical consumers are turned
on. The seat heater switches off auto-
matically.
The seat heater will switch back on
again automatically as soon as suffi-
cient voltage is available.
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115 Controls in detailSeats
Vehicles with seat ventilation*
Both switches for the front seats are locat-
ed in the center console.
1Seat heating
The red indicator lamps on the switch
show the heating level you have selected:

Make sure the ignition is switched on.
All the lamps in the instrument cluster
come on.
Switching on seat heating

Press upper switch position1 twice.
A red indicator lamp on the switch
comes on.
Switching off seat heating

Press upper switch position1 again.
Switching on rapid seat heating

Press upper switch position1 once.
Both red indicator lamps on the switch
come on. Switching off rapid seat heating mode

Press switch position1 twice.
Level2
Two indicator lamps on
1
One indicator lamp on
off
No indicator lamp on
iThe seat heating will be automatically
switched off after approximately
20 minutes.
iThe system switches over to normal
heating mode after approximately ten
minutes. Only one indicator lamp re-
mains lit. !If one or both of the lamps on the seat
heating switch are flashing, there is in-
sufficient voltage due to too many elec-
trical consumers are turned on. The
seat heating switches off
automatically.
The seat heating will switch back on
again automatically as soon as suffi-
cient voltage is available.
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255 Controls in detail
Useful features
Floormats*
Removing
Pull floormats off of retainer pins2 in
direction of arrow1.

Remove the floormats.
Installing

Lay down the floormat.

Press the floormat eyelets4 onto re-
tainer pins5 in direction of arrow3.
Warning!
G
Never touch the heating element or sides of
the lighter; they are extremely hot. Hold the
knob only.
When leaving the vehicle, always remove the
SmartKey from the starter switch, take the
SmartKey with KEYLESS-GO* with you and
lock the vehicle. Do not leave children unat-
tended in the vehicle, or with access to an
unlocked vehicle. Unsupervised use of vehi-
cle equipment may cause an accident
and/or serious personal injury.iThe lighter socket can be used to ac-
commodate electrical accessories up
to a maximum 85 W.
Warning!
G
Whenever you are using floormats, make
sure there is enough clearance and that the
floormats are securely fastened.
Floormats should always be securely fas-
tened using eyelets
4
and retainer
pins
5
.
Before driving off, check that the floormats
are securely in place and adjust them if nec-
essary. A loose floormat could slip and
hinder proper functioning of the pedals.
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274 OperationDriving instructionsBrakesTo help prevent brake disk corrosion after
driving on wet road surfaces (particularly
salted roads), it is advisable to brake the
vehicle with considerable force prior to
parking. The heat generated serves to dry
the brakes.
If your brake system is normally only sub-
ject to moderate loads, you should occa-
sionally test the effectiveness of the
brakes by applying above-normal braking
pressure at higher speeds. This will also
enhance the grip of the brake pads.If the parking brake is released and the
brake warning lamp in the instrument clus-
ter stays on, the brake fluid level in the res-
ervoir is too low.
Brake pad wear or a leak in the system may
be the reason for low brake fluid in the res-
ervoir.
Have the brake system inspected immedi-
ately. Contact your authorized
Mercedes-Benz Center.
All checks and service work on the brake
system should be carried out by qualified
technicians only. Contact your authorized
Mercedes-Benz Center.
Only install brake pads and brake fluid rec-
ommended by Mercedes-Benz.Warning!
G
After driving in heavy rain for some time
without applying the brakes or through wa-
ter deep enough to wet brake components,
the first braking action may be somewhat
reduced and increased pedal pressure may
be necessary to obtain expected braking ef-
fect. Maintain a safe distance from vehicles
in front.
Resting your foot on the brake pedal will
cause excessive and premature wear of the
brake pads.
It can also result in the brakes overheating,
thereby significantly reducing their effec-
tiveness. It may not be possible to stop the
vehicle in sufficient time to avoid an acci-
dent.
!Be very careful not to endanger other
road users when you apply the brakes.
Refer to the description of the Brake
Assist System (BAS) (
page 78).
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275 Operation
Driving instructions
After hard braking, it is advisable to drive
on for some time, rather than immediately
parking, so that the air stream can cool
down the brakes faster.
Driving off
Apply the brakes to test them briefly after
driving off. Perform this procedure only
when the road is clear of other traffic.
Warm up the engine gradually. Do not
place full load on the engine until the oper-
ating temperature has been reached.
When starting off on a slippery surface, do
not allow a drive wheel to spin for an ex-
tended period. Doing so may cause serious
damage to the drive train which is not cov-
ered by the Mercedes-Benz Limited War-
ranty.
Parking
Warning!
G
If other than recommended brake pads are
installed, or other than recommended brake
fluid is used, the braking properties of the
vehicle can be degraded to an extent that
safe braking is substantially impaired. This
could result in an accident.!When driving down long and steep
grades, relieve the load on the brakes
by shifting into a lower gear to use the
engine’s braking power. This helps pre-
vent overheating of the brakes and re-
duces brake pad wear.
!Simultaneously depressing the acceler-
ator pedal and applying the brake re-
duces engine performance and causes
premature brake wear and drivetrain
wear.
!Set the parking brake whenever park-
ing or leaving the vehicle. In addition,
move gear selector lever to positionP.
When parking on hills, turn front wheels
towards the road curb.Warning!
G
Do not park this vehicle in areas where com-
bustible materials such as grass, hay or
leaves can come into contact with the hot
exhaust system, as these materials could be
ignited and cause a vehicle fire.
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315 Practical hints
What to do if …?
Problem
Possible cause
Suggested solution
•
The red coolant warning lamp
comes on when the engine is
running.
There is insufficient coolant in the reservoir.

Add coolant to prevent engine from
overheating (
page 292).
If this warning lamp comes on frequently,
there is a leak in the cooling system.

Have the cooling system checked.
If the coolant level is correct, the electric ra-
diator fan may be broken.

If the coolant temperature is below
257 °F (125 °C), you can continue
driving to the nearest authorized
Mercedes-Benz Center.

Avoid high engine loads (e.g. driving
uphill) and stop-and-go driving.
•
The red coolant warning lamp
comes on while driving and you
hear a warning sound.
The coolant temperature has exceeded
257 °F (125 °C).

Stop as soon as possible and allow
the engine and coolant to cool down.
Warning!
G
Driving when your engine is badly overheat-
ed can cause some fluids which may have
leaked into the engine compartment to
catch fire. You could be seriously burned.
Steam from an overheated engine can cause
serious burns and can occur just by opening
the hood. Stay away from the engine if you
see or hear steam coming from it.
Turn off the engine, get out of the vehicle
and do not stand near the vehicle until the
engine has cooled down.
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437 Index
Front airbags 63
Front lamps
Messages in display 335–336
Replacing bulbs 373, 374
Switching on 119
Front seat head restraints
Installing 110
Power seat 110
Removing 110
Front seats
Seat heating* 114
Ventilation* 113
FSS (Flexible Service System) 302, 421
Fuel 285
Additives 413
Fuel reserve warning lamp 317
Gasoline additives 413
Premium unleaded
gasoline 285, 411, 413
Requirements 413
Reserve warning 23
Technical data 410
Fuel additives 413
Fuel consumption statistics
After start 152
Since last reset 153Fuel filler flap 284
Locking 284
Opening 352
Unlocking 284
Fuel requirements 413
Fuel reserve tank
Message in display 334
Fuel tank
Capacity 411
Filler flap 284
Fuels, coolants, lubricants etc.
Capacities 410
Functions (control system) 130, 133
Resetting 140
Fuse box 394, 395
Fuse chart 394
Fuse extractor 396
Fuses 394
Auxiliary fuse box in trunk 396
Fuse box in
engine compartment 395
Fuse box in
passenger compartment 394
Fuse chart 394
Fuse extractor 396
Spare fuses 396G
Garage door opener 27, 265
Gasoline see Fuel
Gasoline additives 413
Gear range 421
Shifting into optimal 158
Gear range limit
Canceling 158
Gear ranges 159
Displaying in Speedometer 159
Limiting 159
Gear selector lever 23, 352
Cleaning 309
Position 23, 157, 160
Unlocking manually 352
Global
Locking 89
Locking with KEYLESS-GO* 94
Unlocking 89
Unlocking with KEYLESS-GO* 94
Global Positioning System (GPS) 421
Glove box 21, 250
Closing 250
Opening 250
Good visibility 167
GPS 421
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